code: def test_simplex_to_sphere_after_sphere_to_simplex(
      self, n_points, atol
  ):
      point_sphere = self.data_generator_sphere.random_point(n_points)
  
      point = self.space.metric.sphere_to_simplex(point_sphere)
      point_sphere_ = self.space.metric.simplex_to_sphere(point)
  
      self.assertAllClose(
          point_sphere_, gs.abs(point_sphere), atol=atol
      )
  
imports: import pytest
  import geomstats.backend
  from geomstats.test.vectorization import generate_vectorization_data
  from geomstats.test_cases.geometry.base import LevelSetTestCase
  from geomstats.test_cases.geometry.riemannian_metric import RiemannianMetricTestCase
  from geomstats.test_cases.information_geometry.base import InformationManifoldMixinTestCase
label_desc: Use image node_id 7 for calling the MultinomialMetricTestCase obj's underlying member method code with example usage: obj.test_simplex_to_sphere_after_sphere_to_simplex(n_points, atol) without return types